Nausea after oral administration of clarithromycin can be relieved by stopping the medication and taking oral prokinetic drugs. Clarithromycin belongs to macrolide antibiotics, common adverse reactions are mainly gastrointestinal reactions, such as nausea and vomiting, loss of appetite, abdominal pain and so on. 1. Stop using the drug: nausea after oral clarithromycin, should immediately stop using the drug, remove the cause of gastrointestinal tract stimulation, most can be gradually recovered. 2. Pro-dynamic drugs: If the symptoms can not be recovered after stopping the drug, or the symptoms gradually aggravate, you can take domperidone, mosapride and other drugs to promote gastrointestinal peristalsis and relieve symptoms. Drugs need to be used under the guidance of a doctor. When the above situations occur, you should consult a doctor in time and intervene as early as possible under the guidance of a professional physician, and you should not abuse drugs on your own.